Vol 2 Chapter 434: Weird neutron star

Xiao Yu knows that the dangerous areas in the universe, no matter for which civilization, are quite deterrent. Xiao Yu once heard that Luka II said that a certain dangerous area in the galaxy had caused the guardian civilization to lose a considerable number of spaceships, and then it was not heard that the guardian civilization divided it into an extremely dangerous area. What else did you do?
In other words, the guardian civilization is powerless in that dangerous area.
The neutron battle star manufacturing technology of the sweeper civilization is also obtained from an extremely dangerous area. Come to think of it, when getting this technology, the sweeper civilization must have paid a heavy price.
Xiao Yu also once reached a dangerous area, which is a moderately dangerous area in the Sky Eagle Nebula. It was there that Xiao Yu encountered the powerful alien beast that could survive on the white dwarf. That beast, in its heyday, undoubtedly reached the level of six, that is, even if the guardian civilization faces this guy, it will be quite tricky.
Therefore, Xiao Yu believes that an extremely dangerous area should be enough for the guardian civilization to give up his hunt. In the final analysis, I am only a fifth-level civilization, not to let a sixth-level civilization risk perseveringly after myself, right?
In front of Xiao Yu, a white dwarf and a neutron star are running quietly. Xiao Yu at this moment is 40 billion kilometers away from the neutron star. This distance is the limit that can be reached by curvature navigation. If you move forward, you will be affected by the gravitational force of the neutron star, which may cause unexpected curvature navigation. Therefore, Xiao Yu escaped from the state of curvature navigation, and in the conventional navigation mode, he was advancing at a speed of 170,000 kilometers per second.
Three hours later, Xiao Yu advanced a distance of 1.8 billion kilometers. At this time, at the rear, a fleet of guardian civilizations appeared. Xiao Yu knew that the Guardian Civilization, who had mastered space technology, had the ability to sail through curvature in the galaxy regardless of gravitational influence, but the Guardian Civilization's fleet did not move forward. There seemed to be an invisible barrier ahead, which kept them there. This fact made Xiao Yu's mood slightly relaxed.
"They should be jealous of this extremely dangerous area ..." Xiao Yu thought secretly.
"Shenzhou civilization, there is a five-level extremely dangerous area ahead. If you don't want genocide, you better come back now. If you can belong to our guardian alliance, we will consider and not destroy you." Yu received a message from the guardian civilization.
Xiao Yu ignored it very simply, but kept his own speed and drove forward.
"The guardian civilization has not caught up." Xiao Yu said quietly in the virtual conference room. "It seems that the guardian civilization is not willing to enter such a dangerous place. Then, we are safe for the time being."
"I don't know why, I always have a bad feeling." Luca II said with anxiety, "It seems that in the next moment, something bad will happen. This feeling is very bad, very bad . "
"After all, this is a five-level extremely dangerous area. It is impossible without danger." Xiao Yu replied, "No matter what the danger is, it is good to face it bravely. Maybe there are some things here that can help us Bring hope. "
That being said, the mood of these scientists and Xiao Yu was not a little relaxed.
Hundreds of the most prominent scientists are in virtual meeting rooms, ready to respond to emergencies. All Xiao Yu's spacecraft are now ready to deal with any danger.
Conventional navigation continues, and Xiao Yu is getting closer and closer to the target. Finally, after three days, Xiao Yu reached the planet and stopped.
The radiation here is very strong. The distance between the two planets and their host star, that white dwarf, is only 30 million and 100 million kilometers. At such a distance, if there is no spacecraft as protection, the radiant energy of a white dwarf is sufficient. Kill any creature.
The white dwarf is only a billion kilometers away from the neutron star. At such a short distance, the powerful radiant energy of that neutron star can also easily reach here. The visible light here is very faint, but in the invisible light band, it is said that these two planets are not being overheated.
This is the first time in more than 10,000 years that Xiao Yu has observed a neutron star at such a close distance. A neutron star is a more extreme object than a white dwarf. It has a small volume and a large mass. A typical neutron star has a diameter of only about ten kilometers, but its mass can reach nearly twice the mass of the sun. This means extremely scary density.
The power of neutron stars is unquestionable. Such a small thing that is not even as large as a mountain range above the earth has extremely powerful energy.
The Crab Nebula originated from one of the most famous supernova outbreaks in history. At that time, it was probably the Song Dynasty in China. This time, a supernova eruption added another moon to the sky, which can be clearly seen even during the day. The star that caused the culprit in the incident, the powder and bones that were blown up during the incident, and its corpse have expanded to the size of eleven light years. In the center of this vast nebula, there is a neutron star.
This neutron star is a pulsar. Its radius is only about ten kilometers, but its intense radiation has illuminated the surrounding space for eleven light years. Around this neutron star is the gas ejected by the exploding star. The radiation of this neutron star interacts with these gases and emits gorgeous visible light.
A small thing with a radius of ten kilometers can illuminate more than ten light-years of space.
Compared to neutron stars, white dwarfs are typically the size of the Earth and 0.6 times the mass of the sun. Extreme celestial bodies such as neutron stars and white dwarfs have a weird characteristic, that is, the larger the mass, the smaller the volume. A neutron star is much smaller than a white dwarf, so its mass is much larger than a white dwarf.
"This is a magnetic star," Xiao Yu said. "It has an extremely strong magnetic field, but it is not a pulsar."
There are many types of neutron stars. Pulsars and magnetars are both types of neutron stars. Magnetic stars, as the name suggests, some neutron stars have extremely strong magnetic fields for some unknown reason, so they are called magnetic stars.
The magnetic field of a magnetic star is very strong. According to data estimates, if a human stands thousands of kilometers away from a magnetic star, all iron elements in the human body will be absorbed by this magnetic star. go. Compared to the magnetic star, the Magneto King shot in the movie is just an insignificant ant.
"Yes, it is a magnetic star." Luca III nodded, agreed with Xiao Yu, and then Luca 2 continued: "Master, did you find it? This neutron star is weird, it Rotation is too slow. "
Neutron stars are invisible in the visible light band. Because the temperature of a neutron star is too high, according to the principle of black body radiation, the light it emits will be X-rays and gamma rays. In other words, even if a human is standing in front of a neutron star, he cannot see the existence of the neutron star. It's just that in this stellar system, all kinds of radiation are everywhere, which shows the power of this neutron star all the time. By measuring this radiation, Xiao Yu can easily obtain various data about the neutron star.
Xiao Yu had long noticed the slow rotation of the neutron star and tried to explain it, but Xiao Yu found that in his existing theory, he could not make any reasonable explanation for this phenomenon.
The neutron star's rotation speed is extremely slow, about one frequency every three days. This phenomenon is very strange.
The stars appear to rotate because of the dominance of the conservation of angular momentum. At the stage where the interstellar dust forms a primitive star ~ EbookFREE.me ~ Due to the collapse of gravity, the interstellar dust converges to the center while also bringing the power of rotation. it's the same. So, everything in the visible universe is turning.
The massive star has a rotation. After experiencing the supernova explosion phase, part of its mass was ejected, and the other part of its mass collapsed into a neutron star or white dwarf. Its volume was reduced by ten million times, but its angular momentum changed little Because most of its quality is preserved.
The volume is reduced and the mass is unchanged. Because of the conservation of angular momentum, its rotation must be accelerated. Therefore, the neutron star's rotation speed is very scary, and can even reach the millisecond level, that is, hundreds of revolutions per second. Of all the neutron stars observed by Xiao Yu, the one with the slowest rotation has a rotation speed of about 15 minutes per week. Compared with the earth, this rotation speed is also fast enough.
However, the neutron star's rotation speed was even as slow as three days a week.
Such a neutron star is almost impossible. The reason is simple. The fast rotation brings extremely high centrifugal force. Under the action of such a strong centrifugal force, this neutron star can maintain its own gravity balance and keep itself in a In a stable state, the centrifugal force brought by one day's rotation in three days is minimal, and it is impossible to offset its strong gravity and stabilize itself. This is a contradiction.
Although there is no way to explain this phenomenon, Xiao Yu did not feel incredible. Here, there is a fifth-level extremely dangerous area. In such a place, there is an odd neutron star. Isn't this normal? (To be continued.)